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Overview

Comprehensive Description

Biology

Inhabits coastal to inner reefs and estuaries, often in silty habitats (Ref. 48637). Found on lagoon slope and floor (Ref. 30573), also coral reefs. Generally solitary or in pairs (Ref. 4420). Young form small aggregations when common while adults are usually seen solitary, except when nesting and males congregate on certain sand flats adjacent to reefs (Ref. 48637). Feeds on tips of coral branches, gastropods, crustaceans, foraminiferans, and tunicates (Ref. 1602) and also on sea urchins (Ref. 9770). Oviparous (Ref. 205). Nest-guarding females are aggressive (Ref. 9770). Also caught with drive-in nets. Marketed fresh and dried-salted (Ref. 9770). Ciguatoxic in certain areas (Ref. 37816).
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Distribution

Indo-Pacific: Red Sea south to Natal, South Africa (Ref. 4420) and east through Indonesia to the Tuamoto Islands, north to southern Japan.
  • Matsuura, K. 2001 Balistidae. Triggerfishes. p. 3911-3928. In K.E. Carpenter and V. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Vol. 6. Bony fishes part 4 (Labridae to Latimeriidae), estuarine crocodiles. FAO, Rome. (Ref. 9770)   http://www.fishbase.org/references/FBRefSummary.php?id=9770&speccode=9 External link.
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Red Sea, Indo-West Pacific: East Africa, South Africa, Madagascar and western Mascarenes east to Marshall Islands and Tuamotu Archipelago, north to southern Japan and Ogasawara Islands, south to Great Barrier Reef (Queensland, Australia) and New Caledonia
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Physical Description

Morphology

Dorsal spines (total): 3; Dorsal soft rays (total): 24 - 27; Analspines: 0; Analsoft rays: 22 - 25
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Size

Maximum size: 600 mm TL
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Max. size

60.0 cm TL (male/unsexed; (Ref. 9770))
  • Matsuura, K. 2001 Balistidae. Triggerfishes. p. 3911-3928. In K.E. Carpenter and V. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Vol. 6. Bony fishes part 4 (Labridae to Latimeriidae), estuarine crocodiles. FAO, Rome. (Ref. 9770)   http://www.fishbase.org/references/FBRefSummary.php?id=9770&speccode=9 External link.
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Diagnostic Description

Description

Generally occurs solitarily or in pairs in coral reefs. Feeds on tips of coral branches, gastropods, crustaceans, foraminiferans, and tunicates (Ref. 1602) and also on sea urchins (Ref. 9770). Nest-guarding females are aggressive (Ref. 9770). Also caught with drive-in nets. Marketed fresh and dried-salted (Ref. 9770).
  • Anon. (1996). FishBase 96 [CD-ROM]. ICLARM: Los Baños, Philippines. 1 cd-rom pp.
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Scales relatively large (Ref. 9002).
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Ecology

Habitat

Environment

reef-associated; marine; depth range 2 - 50 m (Ref. 1602)
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Depth range based on 16 specimens in 1 taxon.
Water temperature and chemistry ranges based on 16 samples.

Environmental ranges
  Depth range (m): 0.61 - 62
  Temperature range (°C): 24.846 - 28.988
  Nitrate (umol/L): 0.046 - 1.522
  Salinity (PPS): 34.131 - 35.364
  Oxygen (ml/l): 4.406 - 4.778
  Phosphate (umol/l): 0.092 - 0.254
  Silicate (umol/l): 1.023 - 4.599

Graphical representation

Depth range (m): 0.61 - 62

Temperature range (°C): 24.846 - 28.988

Nitrate (umol/L): 0.046 - 1.522

Salinity (PPS): 34.131 - 35.364

Oxygen (ml/l): 4.406 - 4.778

Phosphate (umol/l): 0.092 - 0.254

Silicate (umol/l): 1.023 - 4.599
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Depth: 2 - 50m.
From 2 to 50 meters.

Habitat: reef-associated.
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Associations

Known prey organisms

Pseudobalistes flavimarginatus preys on:
Acanthaster planci

This list may not be complete but is based on published studies.
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Diseases and Parasites

Caligus Infestation 7. Parasitic infestations (protozoa, worms, etc.)
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Life History and Behavior

Life Cycle

Males migrate to a traditional spawning ground where they establish territories enclosing nest sites and egg chambers (Ref. 9777). Nesting occurs in sand-bottomed channels and shallow cuts through the barrier reef (Ref. 37816). The nest consist of depressions up to 2 m wide and 0.7 m deep (Ref. 37816). Females arrive several days later and select a male for mating (Ref. 9777). Exhibit biparental care (Ref. 9777). Up to 430,000 or more eggs may be deposited in a spongy fist-sized cluster weighted down with pieces of rubble (Ref. 37816).
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Pseudobalistes flavimarginatus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 3
Specimens with Barcodes: 6
Species With Barcodes: 1
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Barcode data: Pseudobalistes flavimarginatus

The following is a representative barcode sequence, the centroid of all available sequences for this species.


There are 3 barcode sequences available from BOLD and GenBank.  Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species.  See the BOLD taxonomy browser for more complete information about this specimen and other sequences.

ACACGCTGACTCTTCTCAACTAACCATAAAGACATCGGCACCTTATACCTGATTTTCGGTGCTTGAGCCGGAATGGTAGGAACCGCTTTA---AGCCTACTAATCCGAGCAGAATTAAGCCAACCCGGCGCTCTTTTAGGAGAC---GATCAAATTTATAACGTTATCGTCACAGCACATGCTTTCGTGATAATTTTCTTTATAGTAATGCCAATTATGATTGGAGGATTCGGGAACTGACTCGTTCCTCTAATA---ATTGGAGCCCCCGACATAGCATTCCCTCGCATGAACAATATGAGCTTCTGACTCCTACCTCCATCGCTTCTTCTCTTACTTGCCTCATCAAGCGTAGAAGCAGGGGCCGGTACCGGATGAACAGTCTACCCTCCACTAGCAGGAAACCTAGCCCACGCAGGTGCTTCTGTAGACCTT---ACCATTTTCTCACTACACTTAGCAGGAATCTCCTCTATTCTTGGAGCAATCAATTTTATTACAACCATTATTAACATGAAACCCCCCGCCATTTCTCAATACCAGACGCCACTGTTCGTCTGAGCTGTCCTTATCACCGCAGTCCTACTGCTCTTGTCCCTCCCTGTTTTAGCTGCC---GGAATTACCATACTACTTACCGACCGAAATCTAAACACCACCTTCTTTGACCCTGCTGGAGGAGGAGACCCAATTCTTTACCAACATTTATTCTGATTCTTTGGCCACCCAGAAGTGTACATTCTTATTCTTCCTGGCTTCGGAATGATTTCACATATTGTTGCCTACTATTCCGGTAAAAAA---GAACCCTTTGGTTACATAGGAATGGTCTGAGCCATGATGGCCATCGGACTCCTAGGCTTTATCGTTTGAGCCCACCATATGTTTACAGTAGGAATGGACGTCGACACCCGAGCCTATTTCACCTCAGCCACTATGATTATTGCGATCCCAACTGGTGTAAAAGTGTTTAGCTGATTA---GCCACACTGCACGGAGGC---GCAATCAAATGAGAAACCCCCCTTCTATGGGCCCTAGGGTTTATTTTCCTATTCACAGTAGGAGGACTGACAGGTATTGTGTTAGCAAACTCGTCACTTGACATTGTACTCCATGACACATACTATGTAGTAGCCCATTTCCACTATGTT---CTTTCAATAGGAGCCGTGTTTGCCATCGTCGCCGCCTTCGTCCACTGATTCCCACTATTCTCAGGCTACACCCTTCACGACACATGAACAAAAATCCATTTTGGAGTAATGTTCGTAGGAGTTAATCTGACATTCTTCCCACAACACTTCCTAGGTCTAGCCGGAATGCCTCGA---CGCTACTCAGACTATCCTGATGCTTATACC---CTCTGAAACACAGTGTCTTCGATTGGATCCCTCGTATCCTTAGTAGCAGTTATCCTATTCCTATTTATTATCTGAGAAGCATTTGCAGCTAAACGAGAAGTC---CTTTCAGTAGAACTTACCTCAACAAAC
-- end --

Download FASTA File
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Conservation

Threats

Not Evaluated
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: commercial; aquarium: commercial
  • Matsuura, K. 2001 Balistidae. Triggerfishes. p. 3911-3928. In K.E. Carpenter and V. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Vol. 6. Bony fishes part 4 (Labridae to Latimeriidae), estuarine crocodiles. FAO, Rome. (Ref. 9770)   http://www.fishbase.org/references/FBRefSummary.php?id=9770&speccode=9 External link.
  • Anonymous 2001 On reef fisheries exploitation and trade in Indonesia. p. 41-44. In Country Status Overview 2001on reef fisheries exploitation and trade in Indonesia. Ministry of Marine Affairs and Fisheries, Telepak Indo. Found. And International Marine Alliance (IMA) Indonesia. Indonesia. (Ref. 40944)   http://www.fishbase.org/references/FBRefSummary.php?id=40944&speccode=187 External link.
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Wikipedia

Yellowmargin triggerfish

An Yellowmargin triggerfish in Apo Reef, Philippines.

The yellowmargin triggerfish, Pseudobalistes flavimarginatus, are marine fish in the triggerfish family Balistidae. They originate in coastal tropical waters and reefs of the Indo-Pacific from the Red Sea south to Natal, South Africa and east from southern Japan south to Indonesia, Philippines and Samoa. They can be found at water depths from 2–50 m (7–165 ft).

These triggerfish can grow to a maximum length of 60 cm (23 in). They are marketed either fresh or dried for food, but are potentially dangerous in some areas due to ciguatera poisoning.

The yellowmargin triggerfish is oviparous, spawning in pairs. The female fish guard their nests aggressively. When not mating, the fish are solitary or may remain in pairs.

Juvenile fish become adults and some change their shape and colour. Some species change sex and others just get older. Other names for the yellowmargin triggerfish include the yellowmargin trigger, yellowface triggerfish, yellowed-face triggerfish and pineapple trigger.

See also[edit]

References[edit]

Whatsthatfish.com, (2012).

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